FloatBuffer get() methods in Java with Examples
get()
The get() method of java.nio.FloatBuffer Class is used to reads the float at the given buffer’s current position, and then increments the position.
Syntax :
public abstract float get()
Return Value: This method returns the float value at the buffer’s current position.
Throws: This method throws BufferUnderflowException – If the buffer’s current position is not smaller than its limit, then this exception is thrown.
Below are the examples to illustrate the get() method:
Examples 1:
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
int capacity = 5 ;
try {
FloatBuffer fb = FloatBuffer.allocate(capacity);
fb.put( 8 .56F);
fb.put( 9 .61F);
fb.put( 1 .24F);
fb.rewind();
System.out.println( "Original FloatBuffer: "
+ Arrays.toString(fb.array()));
float value = fb.get();
System.out.println( "\nFloat Value: " + value);
float value1 = fb.get();
System.out.print( "\nNext Float Value: " + value1);
}
catch (IllegalArgumentException e) {
System.out.println( "\nIllegalArgumentException catched" );
}
catch (ReadOnlyBufferException e) {
System.out.println( "\nReadOnlyBufferException catched" );
}
catch (BufferUnderflowException e) {
System.out.println( "\nException throws: " + e);
}
}
}
|
Output:
Original FloatBuffer: [8.56, 9.61, 1.24, 0.0, 0.0]
Float Value: 8.56
Next Float Value: 9.61
Examples 2:
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
int capacity = 3 ;
try {
FloatBuffer fb = FloatBuffer.allocate(capacity);
fb.put( 8 .56F);
fb.put( 9 .61F);
System.out.println( "Original FloatBuffer: "
+ Arrays.toString(fb.array()));
float value = fb.get();
System.out.println( "\nFloat Value: " + value);
System.out.print( "\nsince the buffer current position is incremented" );
System.out.print( " to greater than its limit " );
float value1 = fb.get();
System.out.print( "\nNext Float Value: " + value1);
}
catch (IllegalArgumentException e) {
System.out.println( "\nIllegalArgumentException catched" );
}
catch (ReadOnlyBufferException e) {
System.out.println( "\nReadOnlyBufferException catched" );
}
catch (BufferUnderflowException e) {
System.out.println( "\nException throws : " + e);
}
}
}
|
Output:
Original FloatBuffer: [8.56, 9.61, 0.0]
Float Value: 0.0
since the buffer current position is incremented to greater than its limit
Exception throws : java.nio.BufferUnderflowException
get(int index)
The get(int index) method of FloatBuffer is used to read the article at a specified index.
Syntax :
public abstract float get(int index)
Parameters: This method takes index (The index from which the float will be read) as a parameter.
Return Value: This method returns the float value at the given index.
Exception: This method throws IndexOutOfBoundsException. If index is negative or not smaller than the buffer’s limit this exception is thrown.
Below are the examples to illustrate the get(int index) method:
Examples 1:
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
int capacity = 3 ;
try {
FloatBuffer fb = FloatBuffer.allocate(capacity);
fb.put( 8 .56F);
fb.put( 9 .61F);
fb.put( 6 .61F);
System.out.println( "Original FloatBuffer: "
+ Arrays.toString(fb.array()));
float value0 = fb.get( 0 );
System.out.println( "\nFloat Value at index 0: " + value0);
float value1 = fb.get( 1 );
System.out.println( "\nFloat Value at index 1: " + value1);
float value2 = fb.get( 2 );
System.out.println( "\nFloat Value at index 2: " + value2);
}
catch (IllegalArgumentException e) {
System.out.println( "\nIllegalArgumentException catched" );
}
catch (IndexOutOfBoundsException e) {
System.out.println( "\nReadOnlyBufferException catched" );
}
catch (BufferUnderflowException e) {
System.out.println( "\nException throws : " + e);
}
}
}
|
Output:
Original FloatBuffer: [8.56, 9.61, 6.61]
Float Value at index 0: 8.56
Float Value at index 1: 9.61
Float Value at index 2: 6.61
Examples 2:
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
int capacity = 3 ;
try {
FloatBuffer fb = FloatBuffer.allocate(capacity);
fb.put( 8 .56F);
fb.put( 9 .61F);
fb.put( 6 .61F);
System.out.println( "Original FloatBuffer: "
+ Arrays.toString(fb.array()));
float value0 = fb.get( 0 );
System.out.println( "\nFloat Value at index 0: " + value0);
float value1 = fb.get( 1 );
System.out.println( "\nFloat Value at index 1: " + value1);
System.out.println( "\nTrying to get the float"
+ " of index greater than its limit " );
float value2 = fb.get( 4 );
System.out.println( "\nFloat Value at index 2: " + value2);
}
catch (IllegalArgumentException e) {
System.out.println( "IllegalArgumentException catched" );
}
catch (IndexOutOfBoundsException e) {
System.out.println( "Exception thrown: " + e);
}
catch (BufferUnderflowException e) {
System.out.println( "Exception throws : " + e);
}
}
}
|
Output:
Original FloatBuffer: [8.56, 9.61, 6.61]
Float Value at index 0: 8.56
Float Value at index 1: 9.61
Trying to get the float of index greater than its limit
Exception thrown: java.lang.IndexOutOfBoundsException
Last Updated :
24 May, 2019
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